import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '@/components/Login'
import Home from '@/components/Home'
import Welcome from '@/components/Welcome'
import Users from "@/components/user/Users"
import Rights from "@/components/power/Rights"
import Roles from "@/components/power/Roles"
import Cate from "@/components/goods/Cate"
import Params from "@/components/goods/Params";
import List from "@/components/goods/List";
import Add from "@/components/goods/Add";

Vue.use(VueRouter)

const routes = [
    { path: '/', redirect: 'login' },
    { path: '/login', component: Login },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
          { path: '/welcome', component: Welcome},
          { path: '/users', component: Users},
          { path: '/rights', component: Rights},
          { path: '/roles', component: Roles},
          { path: '/categories', component: Cate},
          { path: '/params', component: Params},
          { path: '/goods', component: List},
          { path: '/goods/add', component: Add},
      ]
    },


]

const router = new VueRouter({
  routes
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to --> 将要访问的路径  from --> 代表从哪个路径跳转而来   意：from跳转到to
  // next() --> 是一个函数，表示放行     next('/login') --> 强制跳转
  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default router
